Motorcycle Repair: motorcycle wont start now, old tank, zx12

Question
QUESTION: i have a 2000 zx12 left to me from my family member passing away. the bike set for 6 years i replaced the fuel pump and gas tank the old tank still had old gas. the bike started and ran fine. one day i finally got to really ride it and rode it kinda fast but i went home and the next day i was told to put fuel injector cleaner in it and it had a problem starting.but finally did.the next night it wouldn't start but it turns over strong but won't start. it will sputter every once in a while but not start. what does this seem like it could be

ANSWER: Hi Brandon,
It sounds like the carbs are stopped up in the pilot circuit. You need a service manual to assist you in removal, inspection/cleaning and re-installation of the carbs.
Regards,
Terry.

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QUESTION: alright thank you for the answer but the bike is fuel injected so it couldn't be carbs so any other ideas thank you

Answer
Hi Brandon,
Sorry for the delay, I have been working extra hours and sick for a few days.
It sounds like your fuel injectors are clogged, a service manual will be important here, the best bet will be to replace them if you determine they are the issue.
Regards,
Terry.
PS
Didn't realize the 2000 ZX12 was injected, my bad. :/